Hi amina. Here are some items you can find in your house to clear scratches:

1. Toothpaste

Toothpaste (not tooth gels) is the top recommended solution among all DIY methods to remove scratches. Simply apply some toothpaste on the camera lens. Then use a Q-tip to spread it evenly on the surface and wipe it in a clockwise direction for 5 minutes. Keep wiping sounds boring and stupid, but you’ll thank yourself for it later. After your done wiping use a microfiber cloth with a drop of water to clean off any residue. Depending on the depth of the scratch, it may be necessary to repeat these steps more than once to produce ideal results.

2. Pencil Eraser

A soft, clean, and unused pencil eraser is required for this method. Gently move the eraser over the scratches. Move the eraser along the scratch, and keep rubbing it in one direction (not back and forth) until the scratch disappears.

3. Rubbing Alcohol

Mix 1 part rubbing alcohol with 20 parts water to dilute it, and dip a new, clean microfiber cloth in the diluted alcohol. Then gently rub the scratched lens. Repeat this four times, you will see the scratches disappear bit by bit.

4. Vaseline

Cover the entire scratched lens with Vaseline by the help of your finger. Gently wipe off the Vaseline with a microfiber cloth. Make sure your finger and the microfiber cloth are clean.

5. Scratch Remover

Apply some screen polisher or scratch remover to the scratched camera lens. Polish the scratched areas with heavy pressure for 2-3 minutes with a soft clean cotton cloth. Repeat the application as necessary for deep scratches. Screen polisher or scratch remover can be found on eBay or Amazon.

source